Владислав

Vladislav
PROFESSIONAL SUMMARY

Fullstack Software Engineer with 4+ years of commercial experience building scalable, high-performance web
Fyklev applications and backend APIs across fintech, e-commerce, and crypto domains. Expert in the React

F U L L S TA C K S O F T W A R E E N G I N E E R
ecosystem (TypeScript, Redux Toolkit, MUI) and Node.js backend development (NestJS, Prisma, PostgreSQL).
Proven track record of migrating legacy codebases, integrating payment solutions, implementing KYC flows,
and deploying production-grade services on Google Cloud. Passionate about clean architecture, reusable
C O N TA C T
components, and translating complex business requirements into intuitive user experiences. Actively leverages
⊙ Dnipro, Ukraine AI-assisted development tools (Claude Code, GitHub Copilot) to accelerate delivery and improve code quality.
✆ [відкрити контакти](див. вище в блоці «контактна інформація»)
PROFESSIONAL EXPERIENCE
@ [відкрити контакти](див. вище в блоці «контактна інформація»)
Fullstack Developer 2025 — 2026
in [відкрити контакти](див. вище в блоці «контактна інформація»)
Lustum
Architected and built a RESTful API from scratch using NestJS 11 / TypeScript 5 / Prisma 7 / PostgreSQL, modular
SKILLS
feature-based structure, global validation, rate limiting, structured JSON logging, and Swagger docs.
Implemented dual-flow authentication: email/password + Firebase ID token, both issuing RS256 JWT access/refresh
LANGUAGES
pairs with refresh token rotation, SHA-256 hashing, and token-family invalidation on reuse.
JavaScript · TypeScript · HTML5 · CSS3
Integrated Sumsub KYC: SDK token issuance, idempotent HMAC-verified webhook processing, async cron-based
FRONTEND
event processor (every 5 s), full verification status lifecycle.
React.js · React Native · Redux Toolkit · React
Query · React Router · React Hook Form · Built Crossmint EVM smart wallet creation flow with JWKS endpoint for JWT verification, plus token balance retrieval
(ETH, USDC, USDT).
Formik · SASS · Tailwind CSS · Material UI ·
Styled Components Developed Rain card application flow: user initiation, Sumsub share-token delegation for KYC data access,
consumer application submission, idempotency guards (409 / 403 / 400).
BACKEND
NestJS · Prisma · PostgreSQL · REST API · Provisioned GCP infrastructure via Terraform: Cloud Run, Cloud SQL, Memorystore Redis, Secret Manager, Artifact
Registry with IAM and secret access grants.
WebSocket · Axios
Configured GitLab CI/CD: lint + typecheck → jest coverage → Docker multi-stage build → push to Artifact Registry
AUTH & SECURITY
(master only).
JWT (RS256) · Firebase Auth · HMAC · Refresh
Building a cross-platform mobile application using React Native, sharing business logic with the web platform and
Token Rotation
delivering a native experience on iOS and Android.
CLOUD & DEVOPS
GCP Cloud Run · Cloud SQL · Secret Manager Frontend Software Engineer Apr 2024 — Present
· Artifact Registry · Terraform · Docker · GitLab Aventus Group
CI/CD Designed and delivered client-facing and internal business applications using React, TypeScript, Redux Toolkit, and
Material UI.
INTEGRATIONS
Sumsub KYC · Crossmint · Rain API · Apple Integrated Apple Pay and Google Pay payment gateways, expanding checkout options and reducing friction for end
Pay · Google Pay users.

TOOLS & CONCEPTS
Built responsive, SEO-optimized landing pages that improved organic visibility and accelerated page load
performance.
Git · OOP · Swagger / OpenAPI
Architected reusable UI component libraries, cutting development time for new features and ensuring visual
AI TOOLS
consistency across products.
Claude Code · ChatGPT · GitHub Copilot
Optimized application performance via code-splitting, memoization, and bundle analysis for smoother experiences on
E D U C AT I O N low-end devices.
Partnered with designers, backend engineers, and product managers to translate business requirements into data-
Master's Degree
driven features.
National Mining University
Industrial Management Frontend Software Engineer Aug 2022 — Apr 2024
Graduated 2018 PrivatBank
Led migration of legacy JavaScript/jQuery to modern React + TypeScript, improving maintainability, type safety,
COURSES and developer velocity.

▸ Frontend Development — SkillUp Developed and shipped new banking features while supporting and refactoring existing functionality based on evolving
client requirements.
▸ Complete JavaScript + React — Udemy
Delivered reliable, production-ready solutions in a high-load financial environment using JavaScript, TypeScript,
LANGUAGES React, and Redux.
Collaborated with cross-functional teams (backend, QA, product) to ensure seamless integration and timely delivery of
▸ Ukrainian — Native
releases.
▸ English — Pre-Intermediate
Project Manager Nov 2020 — Aug 2022
PrivatBank
Authored technical specifications for IT projects, aligning engineering deliverables with business objectives and
stakeholder expectations.
Managed end-to-end processing of payment cases, streamlining workflows and boosting operational efficiency.
Analyzed payment recipient databases using dashboards and statistical models to surface actionable insights for
leadership.
Led initiatives to enhance the bank's software systems and payment services, driving measurable improvements in
service quality.